39478 is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 70% of adults in 39478 typically vote, above the U.S. average of about 62%. Among adults in 39478, ~16% vote Democratic, ~54% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 39478 compares
Among zip codes within 15 miles, 39478 leans more Republican than 3 of 4 neighbors.
39478 runs about 32 points more Republican than Mississippi as a whole.
Politics vary noticeably by block within 39478. The west side is the most Republican-leaning (R+62) and the northwest side is the least Republican-leaning (R+49), a spread of about 13 points.
Why 39478 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 39478, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 8% of adults in 39478 hold a bachelor's degree, about 12 points below the Mississippi average of 19%. A high family-household share predicts Republican voting, and about 79% of households in 39478 are family households, above 89% of zip codes.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 39478, MS sits in the bottom quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 39478 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 39478 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 9%, about 51 points below the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
Sources and methodology
Precinct-level voting records used to fit the model come from Mississippi Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.